Home / 1,438,912.85-1,985,647.68-794,319.20

Finding the Fourth Proportional to 1,438,912.85, 1,985,647.68 and 794,319.20

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Solution

The fourth proportional to 1,438,912.85, 1,985,647.68 and 794,319.20 is: 1,096,131.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,912.85 : 1,985,647.68 = 794,319.20 : x
  2. Step 2: Convert to fraction form
    1,438,912.85/1,985,647.68 = 794,319.20/x
  3. Step 3: Cross multiply
    1,438,912.85x = 1,985,647.68 × 794,319.20
  4. Step 4: Simplify right side
    1,438,912.85x = 1,577,238,074,177.40
  5. Step 5: Solve for x
    x = 1,577,238,074,177.40/1,438,912.85
  6. Step 6: Final answer
    x = 1,096,131.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.